In the years before 14,000 BBY, a Sith library-temple was founded on Krayiss Two, a place for magicians of pure Sith blood to gather to meditate and set down the knowledge they had gained from their experiments. However, the temple became abandoned circa 14,000 BBY, although the spirits of those Sith who inhabited the place still remained. By 4000 BBY, the entire temple complex was completely buried, save for the massive obelisk that extended from the top of the structure. Over those ten thousand years, various Jedi, including several Jedi Masters, became interested in the obelisk and the power and knowledge supposedly held on Krayiss Two. However, in each case, the Sith ghosts within deemed them unworthy and trapped their spirits at the library-temple to suffer in torment for eternity.[3] In 4008 BBY,[4] a dark side force gathered on Krayiss Two, attracting the attention of Jev Sunrider, Jedi Watchman of the Darada system. Along with three Jedi Masters, Sunrider journeyed to the world to combat the force, but he never returned.[2]

In 4000 BBY, a Jedi Knight named Vara Nreem arrived on Krayiss Two, seeking the knowledge of the dark side that had lured so many other Jedi in the past. Nreem made her way to the obelisk that stood on the site of the ancient library-temple and recited an incantation that awoke the Sith spirits within from their slumber and prompted the entire temple complex to rise to the surface. Seeking to study within, Nreem beseeched the spirits to allow her access to the temple, hoping to confuse them with an unusual view of the Force. However, the spirits were not fooled and set upon the Jedi. Although Nreem attempted to resist, she was swiftly killed and her spirit made to suffer for eternity.[3] Sometime before the Galactic War between the restored Sith Empire and the Galactic Republic, the Empire conducted an excavation on Krayiss Two that was plagued by the planet's Sith spirits.[5] Knowledge of Krayiss Two's Sith history survived for at least several more millennia. In 44 ABY, Krayiss Two was on a list of Sith worlds assembled by a group of Jedi led by Grand MasterLuke Skywalker, who were trying to track down a Sith Meditation Sphere called Ship.[6]

In ancient times, many pureblood Sith sorcerers called Krayiss Two home, studying and meditating at the library-temple. However, after around 14,000 BBY, the temple was forgotten, only inhabited by the spirits of those who came before. Over time, a number of Jedi, including Vara Nreem, would join them as their search for knowledge ended in disaster.[3]

―Vara Nreem, reciting an incantation to gain access to the obelisk[src]

The main landmark of Krayiss Two was its library-temple, which dated back to the ancient Sith Empire. The temple was an enormous structure of angled walls and pyramidal towers, with a tall obelisk serving as a spire on the top of the building. The temple's massive double-door was protected by a force field, which only allowed certain people to enter the premises. After the temple complex became buried, the obelisk was all that remained above ground.[3]